A thesis statement focuses your ideas into one or two sentences. It should present the topic of your paper and also make a comment about your position in relation to the topic. Your thesis statement should tell your reader what the paper is about and also help guide your writing and keep your argument focused.
Answer:

Explanation:
Nancy only believes that her brother is in Paris. Even if he is in Paris or he is not, Nancy cannot know for sure.
B becuse he told them to throw tea in boston harbor
Explanation:
Jack wanted to be the leader of the group, but most of the people voted for Ralph. A <u>rivalry</u> has been happening between the two boys and their split was because of growing tensions. Disagreement is another reason why the boys have split apart.